app/addons/components/assets/less/bulk-selector.less

// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.

#bulk-action-component-popover {
  font-size: 13px;

  i.icon {
    margin-right: 10px;
  }

  ul {
    margin: inherit;
  }

  li {
    padding: 14px 15px;
    line-height: 0;
    cursor: pointer;
    list-style-type: none;

    &.disabled {
      color: #cccccc;
      cursor: default;
      &:hover {
        background-color: inherit;
      }
    }

    &:hover {
      background-color: #fbcece; // light red
    }
    &:last-child {
      -webkit-border-bottom-right-radius: 5px;
      -webkit-border-bottom-left-radius: 5px;
      -moz-border-radius-bottomright: 5px;
      -moz-border-radius-bottomleft: 5px;
      border-bottom-right-radius: 5px;
      border-bottom-left-radius: 5px;
    }
  }
  .popover-title {
    margin: -1px;
  }

  .popover {
    left: 10px !important;

    .arrow {
      margin-left: -39px;
    }
  }

  .popover-content {
    padding: 0;
  }
}

.bulk-action-component {
  min-height: 43px;

  button {
    height: 26px;
    width: 26px;
    background-color: @background;
    border: 1px solid @darkBorder;
    margin-left: 7px;
  }

  .fonticon-trash:before {
    font-size: 12px;
    margin-left: 2px;
    margin-top: 1px;
  }


  .separator {
    border-left: 1px solid @darkBorder;
    margin: 5px 0;
    height: 15px;
  }

  .bulk-action-component-selector-group {

    .fonticon {
      font-size: 8px;
      color: #505050;
      padding: 3px 0;
      &:hover {
        color: @dangerRed;
      }
    }

  }

  .bulk-action-component-panel {
    input[type="checkbox"] {
      margin: 6px;
    }

    border: 1px solid @darkBorder;

    position: relative;
    float: left;
    div.arrow-button {
      height: 24px;
      width: 24px;
      transform: rotate(90deg);
      cursor: pointer;
      i {
        margin-left: 10px;
      }
    }
  }
}